Calculating machine



April 28, 1936. R. A. CHRISTIAN 2,038,717

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April 28, 1936. R. A. CHRISTIAN 2,038,717

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CALCULATING MACHINE Filed July 29, 1.932 18 Sheets-Sheet 18 PatentedApi'.` 28, 1936v PATENT olFFlcE 2,038,711 cALcULA'rmG MACHINE Raymond A.christian; Dayton, ohio, assignor to The National Cash Register Company,Dayton, Ohio, a. corporation of Maryland Application July 29, 19'32,serial No. 626,152

24 claims. (omas-so) This invention relates to accounting machines andthe like, but more vparticularly Ito improvements in machines of thewell-known Ellis type,

such as are set out and described in Letters Pato Ellis and PatentNo.'1,203,863, issued November 7, 1916 to Halcolm Ellis, and Patent No.1,819,084 issued to Emil John Ens, August 18, 1931.

l The primary object of this invention is to produce a. machine adaptedfor use in banks andother business institutions, where debits` andcredits are constantly being made upon individual accounts, with anaccounting machine which l the other, much the same as a bookkeeperwould hand-post them.

Another object is to furnish means whereby the selection of a particulartotalizer` for addition, subtraction or totalizing transactions causesthe total of each of the above transactions to be automatically storedin separate totalizers.

Still another object is to provide means for automatically printingsubtractive items in a -5 distinctive color.

A further object is to supply means for locking the overdraft mechanismwhen a particular totalizer has been previously selected for addition orsubtraction. f

means for the overdraft mechanism.-

Still another object is to provide means forsimultaneously unlockingthe' machine starting.

oifset from other entries printed in the same column.

l A Astill further Object is to furnish means to prevent operation ofthe-machine for addition or subtraction when the .traveling carriage isin the balance or off-set printing position.

y Another object of the instant invention is to provide interlocksbetween the various totalizer controlling keys,'between said controllingkeysand the machine releasing mechanism, between certain of thetotalizer control keys and the overdraft keys, and between certaintotalizer control` keys and the automatic tabulating mechanism. Withthese and incidental objects in view, the

makes such entries in logical order, one under Another object is to"provide novel non-repeat carriage so that the printing of balancesvwill bev construction and combinations of parts, the essential elementsof which are set forth in appended claims and a preferred form ofembodiment of which is hereinafter described with rei'- erence to thedrawings which accompany and 5 form part of this specification.

.Of said drawings: j

Fig.- 1 is a plan view showing the layout oi' the keyboard of themachine of the instant invention.

Fig. 2 is an elevation of the right side of the machine,A showing partof the operating mecha- 4nism and the automatic overdraft mechanism.

Fig. 3 is a sectional view taken just to the right of an amount bank,showing the location of the different totalizers, the actuating meanstherefor, part of the impression mechanisml and the tally feed rollmechanism.

Fig. 4 is a detail' view of the tally supply roll mechanism.

' Fig. 5 is a sectional view taken near the left side ofthe machine,showing the date-setting and printing mechanisms.

, Fig. 6 is a dtail yview of one of the date-setting levers.

Fig. 7 is a detail View of the reflex ribbon mechanism and the platenroll.

pig. 8 is a detail view of the starting bar release hanging bar lever.

Fig. 9 is a detail view showing the means for connecting the startingbar release lever to the starting bar release shaft.

Fig. l0 is a front v'iew picturing the injector mechanism for rapidlyrevolving the platen roll.

Fig.'11 is a disunited perspective of the injector feed pawl.

Fig. 12 is a side view of the injector mechanism.

Fig. 13 is a sectional view showing the assembly of the injectormechanism.

o Fig. 14 is an end view of the feed pawl assembly.

Fig. 15 is a fragmentary view showing the spring 40 means for returningthe injector lever to normal position. f'

Fig. 16 is anfelevation of the left side of the machine showing thetotalizer controlling mechanism. 45

Fig. 17. is a detail View of part of totalizer controlling mechanism.

Fig. 18 is a front view of the tally feed roll.

Fig. 19 depicts the method of actuating th'e tally feedv roll. f 50 Fig.20 is a detail view of the tallyv feedl roll operating arm. l

Figy 21- illustrates the mechanism for disabling the No. 2

the tally feed roll actuating mechanism.. invention consists of certainnovel` features o:

Fig. 22-is a detail view of the mechanism for releasing the deposit andcheck keys by means of the error key.

Fig. 23 is a detail view of the deposit and check key latch mechanism.

Fig. 24 is a side elevation illustrating the latch mechanism for thedeposit and check keys.

Fig. 25 is a detail view showing the mechanism for releasing the depositor check keys by means of the balance or sub-total key.

Fig. 26 is a side elevation showing the interlock between the startingbar, and the deposit andcheck keys, the means for locking the datesetting levers against manipulation after the machine has been released,and the means for positioning the symbol-printing segment.

Fig. `27 is a detail view of the mechanism for unlocking the startingbar by means oi.' the deposit and check keys.

Fig. 28 is a detail view showing the subftotaly .release bar mechanism,

Fig. 29 is a side elevation showing part of the add and non-addcontrolling' mechanism.

` sheet asr printed by the vertical posting machine for unlocking `thestarting bar Fig. 35 pictures in detail the add and non-add controllingmechanism for the No. 1 and No. 2 totalizers.

Fig. 36 is a plan View of thetotalizer control key releasing mechanism.

Fig. 37 is an end view picturing part of the control key releasingmechanism.,

Fig. 38 is a side elevation illustrating the totalizer control keyreleasing mechanism.

Fig. 39 is a perspective view illustrating the interlock between. thedeposit and check keys and the overdraft key. I l

Fig. 40 is a side view showing the above interlock mechanism and themeans for releasing the machine for an overdraft operation.

Fig. 41 is a View in detail of the overdraft key Fig.'42 risj afacsimile of a portion of a ledger of the preferred form.

Fig. 43 is a detaiiview cfa fragment of the,

tabulating stop4 bar and associated mechanism as used on ythe machine ofthe preferred forin.

Fig. 44 is'a facsimile of a fragment oi a ledger sheet as printed by4the machine of the modified form.

Fig'. (Maa detail' o i the tabulating stop mechanism kof the machine ofthe modiiied fom Fig. 'isja facsimile of a portion of a tally web. Fig.47 is a perspective view'showing the interlock between the deposit andcheck keys and the starting 'ba when thecuriage' is in the balanceposition.`

Fig.. 48 is a side `'elevation ofthe interlocking Amechanism between thede t and check keys and the starting. bar.- and bythe travelingcarriage; I

Fig.V 4a is aviewfin perspective showing the mechanism, for operatingthe tabulating mechanism by means of the balance lkey.

shows the means f equipped withjfo'ur totalizers. of an account takesplace in the add-subtract Fig. 50 is a detail view showing the mechanismfor locking the automatic tabulating mechanism when the balance key isdepressed.

GENERAL DEsoaLe'rIoN The instant invention is shown incorporated in .thewell known Ellis accounting machine which is fully illustrated anddescribed in the patents referred to at the `beginning of thisspecification.

Y complished in the majority of such institutions by the use ofaccounting or bookkeeping machines. With but few exceptions theseinstitutions use a system requiring a ledger or posting sheet for eachindividual account. These ledger sheets are generally the iullwidth ofthe traveling carriage and are .divided into a plurality of verticalcolumns se'veral of which are used for the listing o! checks issuedagainst the particular account, one or more of said columns being usedfor the posting of deposits and another column for balancing theaccount.

Heretofore the practice has been to work across the ledger sheet fromleft to right in a horizontal line, tabulating the traveling carriageafter each entry. The machine oi' the instant invention uses a ledgerlsheet divided into a plurality of vertical spaces the same as formermachines, but instead of listing the itemsv horizontally across thesheet all entries are listed in vertical alinement, 4one under theother, until one columnar division is iilled. The traveling carriage isthen tabulated tothe next column where en tries are made as before, andso on. This meth od of listing the different entries makes for speediermachine operation, ease in checking or verifying an account, and alsorenders the machine adaptable for use in department stores or similar'businesses with very little mechanical change. l

The machine of the instant invention is supplied with a tally rollmechanism mounted in dependent ofthe traveling carriage. The inkingribbon has been reilexed in such a manner as to straddle the web of thetally roll, making it possible to print positively upon the tally weband ledger sheet simultaneously. The tally web is at all times betweenthe printing 'type and the i ledger sheet, the printing upon the ledgersheet being 'done through the tally web by means of the reiiex ribbonwhich eliminates the use of carbon duplicates for proof purposes.This'machine has also been equipped with an overdraft mechanism, whichautomatically transposes a complementary overdraft into a positiveamount and prints such positive amount in a distinguishing manner.

Mechanism has been devised whereby the de pression of a-check or debitkey shifts the ribbonmechanism to a position where debit items will beprinted in a distinctive color. All other items are easilydistinguishable `by means of vcharacteristic symbols printed` inhorizontal alinement therewith.

As previously stated, the instant machine is The calculation

